S2 Series Diffusion Sensor / Transmitter - Non Explosion Proof
The RKI S2 series gas sensor / transmitters are highly reliable and very cost effective for the detection of common gas hazards. The S2 series are available for LEL, H2 Specific (LEL, and ppm), Oxygen, H2S, CO, and for a variety of toxic gases. The transmitters for LEL, H2 Specific, Oxygen, H2S, CO2, and Carbon Monoxide are explosion-proof with flame arrestors, and approved for use in hazardous areas (Class I, Groups B, C, D). An optional non-explosion proof version is available for oxygen, H2S, CO, and CO2 in non-hazardous atmospheres. LEL sensors are available using catalytic bead and infrared technologies.
The J-Box (junction box) is needed for remote runs away from the controller.
The S2 transmitters can be used either indoors or outdoors. The flame arrestors for the explosion-proof versions utilized a patented coating which make them water repellent. Splash guards are also available for use in very wet environments. An optional stainless steel junction box is available for corrosive environments.
All of the S2 transmitters are designed to interface with RKI controllers, or with PLC/DCS systems.
Features:
- Available gases include: LEL, H2S, CO, PPM, H2 and CO2
- Infrared sensor for combustibles and CO2
- Patented water repellent sensor coating
- 4-20 mA output
- Optional stainless steel junction box (contact for pricing)
Applications:
- Petrochemical plants
- Refineries
- Gas Plants
- Offshore Drilling Platforms
- Water and wastewater treatment plants
- Pulp & paper mills
- Gas, telephone & electric utilities
- Parking garages
- Manufacturing facilities
- Steel
- Automotive
- Chemical storage buildings
Download Product Datasheet (PDF) click here
S2 Series Diffusion Sensor / Transmitter - Non Explosion Proof
Non-Explosion Proof | O2 Oxygen | H2S Hydrogen Sulfide | CO Carbon Monoxide | Toxics See chart below | CO2 Carbon Dioxide |
| Part # | 65-2321RK | 65-2330RK | 65-2335RK | See chart
below | 65-2397RK-02
65-2397RK-03
65-2397RK-05
65-2397RK-10 |
| Sensor | Galvanic cell | Electrochemical | Infrared |
| Measuring Range | 0-25% Vol. | 0-100 ppm | 0-300 ppm | See chart
below | 0 - 5000 ppm
0 - 5% Vol.
0 - 50% Vol.
0 - 100% Vol. |
| Lower Detectable Limit (LDL) | 0.1% Vol. | 2% of full scale |
| Accuracy | +/- 5% of full scale (0.5% volume for oxygen) |
| Life Expectancy | 2 years normal
service | 2 to 3 years with normal service | 5 years plus with
normal service |
| Response Time (T-90) | 20 Seconds | 45 Seconds | 30 Seconds | 60 Seconds | 30 Seconds |
Operating Environment |
| Location | Indoor Class I, Div. 2 |
| Temperature | -4°F to 122°F -20°C to 50°C | 14°F to 104°F -10°C to 40°C | -4°F to 122°F -20°C to 50°C |
| Humidity | 0 - 99% RH non condensing | 5-95% RH | 0 - 99% RH
non condensing |
Housing |
| Housing J-Box | Cast aluminum, explosion-proof |
| Sensor | Plastic or aluminum |
| Controls |
| Zero | Sets transmitter output to 4 mA with zero output from sensor |
| Span | Sets transmitter output to 20 mA with full scale output from sensor |
| Operating Voltage | 19 VDC to 30 VDC |
| Output | 4-20 mA signal |
| Controllers | Compatible with the following controllers: Beacon 110, Beacon 200, Beacon 410, and 800, also PLC and DCS systems |
| Warranty | One year materials and workmanship |
S2 Series Diffusion Sensor / Transmitter - Non Explosion Proof
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